[填空题]
A person exerts a force of 55 pdtv;-bp /6m iN on th8**5f1fv;c /qvfw.gtmlkuroe end of a door 74 cm wide. What is the magnitude of the torque ;u8o f*fr*cv.wqkmf tv/g 15lif the force is exerted (a) perpendicular to the door $m \cdot N$ (b) at a 45 $^{\circ} $ angle to the face of the door? $m \cdot N$
Post time 2025-2-18 20:00:22
